Two of the year's buzziest breakouts on the big screen were also stand-outs on the red carpet. 12 Years a Slave star Lupita Nyong'o stunned in a bright white gown, while Wolf on Wall Street actress Margot Robbie opted for a jumpsuit (perhaps she was inspired by Emma Watson's pants at the Globes?). Best supporting actress nominee Jennifer Lawrence—who's already taken home a bunch of awards this season—was notably absent, but hey, she got an Oscar nomination today, so she can do whatever she wants.